Pas-plugins-ldap

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- ldap errors dont block that much if ldap is not reachable,
timeout blocked in past the whole zope. now default timeout for retry is
300s - and some code cleanup
[jensens]

- use more modern base for testing
[jensens]

- Add URL example to widget help information how to specify an ldap uri.
[saily]

- Add new bootstrap v2
[saily]

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- sometimes ldap returns an empty string as portrait. take this as no portrait.
[jensens, 2013-09-11]

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- because of passwordreset problem we figured out that pas searchUsers calls
plugins search with both login and name, which was passed to ugm and returned
always an empty result
[benniboy]

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- make it work.

- base work done so far in ``bda.pasldap`` and ``bda.plone.ldap`` was merged.